Sherman had surgery shortly after and had a surgery on his left Achilles last month to clean up bone spurs, a relatively minor procedure.
Sherman said at the Seattle Sports Club awards last month that he anticipated being ready for the 2018 season and said he actually thought he could be 100 percent by the time mini-camp rolls around in June.
At that time, Sherman said he didn't think his health issues should change anything in how he negotiated a new deal with the Seahawks.
"Honestly, I'm not sure on their side of things," he said. "It doesn't change anything in my mind. If we have the talks, we do. If we don't, we don't -- it is what it is. I'm planning on playing five or six more years whether it's here or somewhere else."
On that same night, Sherman spoke philosophically of what he had learned in his seven years in the NFL.
"You learn it's a business," he said. "You come here, you do your job effectively or they will find someone else who can do the job effectively."
Sherman has been regarded as one of the best cornerbacks in the NFL since coming to Seattle as a fifth-round pick out of Stanford in 2011, with many around the team often pointing to the true beginning of the Legion of Boom as the day Sherman moved into the starting lineup in a game against Cincinnati in the seventh week of the 2011 season.
He had started every game since until limping off the field at Arizona, a game in which Chancellor also suffered a neck/nerve injury that ended his season.
Suddenly, it appears there's a chance that night also marked the end of each player's Seattle careers.
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